In exactly the same situation as you matey, came to the following:
Red - Seen in the flesh - A little to tacky IMO
White - Driven and seen in the flesh - Surprised, different quiet liked it, just dont have the balls to get it
Silver - Havent seen, tho personnally dont like silver on the GTi (no offense to silver owners)
Grey - Nice, easy to clean, havent seen a ed30 in the flesh, though maybe slighty boring?
Black - Seen in the flesh, great when clean which is hard work to do.
I got it down to grey and black, finally I think ive tipped to the dark side and goin for black.